Re: LWLock optimization for multicore Power machines

On Thu, Apr 6, 2017 at 5:37 PM, Alexander Korotkov <
a(dot)korotkov(at)postgrespro(dot)ru> wrote:

> On Thu, Apr 6, 2017 at 2:16 AM, Andres Freund <andres(at)anarazel(dot)de> wrote:
>
>> On 2017-04-03 11:56:13 -0700, Andres Freund wrote:
>> > Have you done x86 benchmarking?
>>
>> I think unless such benchmarking is done in the next 24h we need to move
>> this patch to the next CF...
>>
>
> Thank you for your comments.
> I didn't x86 benchmarking. I even didn't manage to reproduce previous
> results on Power8.
> Presumably, it's because previous benchmarks were done on bare metal,
> while now I have to some kind of virtual machine on IBM E880 where I can't
> reproduce any win of Power8 LWLock optimization. But probably there is
> another reason.
> Thus, I'm moving this patch to the next CF.
>

I see it's already moved. OK!

------
Alexander Korotkov
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company